1) What low-level cloud appears thick and dark, bringing steady rain or drizzle? a) Nimbostratus b) Altostratus c) Stratus d) Cumulus 2) Which mid-level cloud forms a gray layer that can cover the entire sky and sometimes brings light rain? a) Altostratus b) Cirrus c) Mammatus d) Silvagenitus 3) Which high-level cloud forms a thin veil across the sky and can produce halos around the sun or moon? a) Altocumulus Lenticularis b) Cirrocumulus c) Cirrostratus d) Virga 4) Which cloud appears to fall as rain or snow that evaporates before reaching the ground? a) Virga b) Altocumulus Lenticularis c) Flammagenitus d) Funnel Clouds 5) What high, glowing cloud appears in polar regions and shines with bright colors? a) Mammatus b) Nacreous c) Noctilucent d) Funnel Clouds 6) Which bluish-white cloud glows after sunset at very high altitudes? a) Nimbostratus b) Noctilucent c) Cirrostratus d) Cirrus 7) Which organization standardized the modern cloud classification system used today? a) World Meteorological Organization (WMO) b) World Cloud Organization (WCO) c) World Meteor Organization (WMO) d) World Masteral Organization (WMO) 8) What basic element causes clouds to form when air rises and cools? a) Water b) Raindrops c) Water Vapor d) Gas 9) What process turns water vapor into tiny droplets that make up clouds? a) Evaporation b) Condensation c) Evapotranspiration d) Sublimation 10) Which special cloud forms above forests due to moisture and heat from vegetation or forests? a) Silvagenitus b) Cirrus Homogenitus c) Cataractagenitus d) Flammagenitus

Assessment: All About Clouds

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